Thermochronologic Evidence Linking the Adirondack and Connecticut Valley Regions of Post-Early Cretaceous Unroofing

9909210 Roden-Tice在造山作用期间，经过广泛的挤压断层作用之后，一个地区经历一段时期的松弛和区域伸展，伴随着差异隆升和侵蚀，这并不罕见。 然而，这些事件相对于挤压阶段的时间以及隆起与先存断层的关系尚不清楚。 该项目将研究新英格兰阿巴拉契亚山脉部分地区的隆起、侵蚀和造山后再活化断层，初步数据表明，该地区白垩纪隆起和侵蚀，并建议差异隆起与较老的挤压断层在空间上相关。 研究结果有望阐明造山后隆起和侵蚀的模式，并可能为区域构造从挤压环境向伸展环境转变的一般过程提供见解。

9909210Roden-TiceAfter extensive episodes of compressional faulting during orogenesis it is not uncommon for a region to undergo a period of relaxation and regional extension, accompanied by differential uplift and erosion. However, the timing of these events relative to compressional phases and the relationship of uplift to preexisting faults is unclear. This project will examine the uplift, erosion and post-orogenic reactivation faulting in a portion of the New England Appalachians where preliminary data has indicated Cretaceous uplift and erosion with a suggestion that differential uplift is spatially associated with older, compressional faults. Results are expected to clarify the pattern of post-orogenic uplift and erosion and may provide insight into the general processers of regional tectonic transition from compressional to extensional environments.